APA (7th ed.) Citation

Roosevelt, T. The Strenuous Life The Works of Theodore Roosevelt, Volume 12 (of 14).

Chicago Style (17th ed.) Citation

Roosevelt, Theodore. The Strenuous Life The Works of Theodore Roosevelt, Volume 12 (of 14).

MLA (9th ed.) Citation

Roosevelt, Theodore. The Strenuous Life The Works of Theodore Roosevelt, Volume 12 (of 14).

Warning: These citations may not always be 100% accurate.